Bending-rolls



P. PARCELLS.

BENDING sous.

7 APPLICATION FILED AUG-30, 1915- '1 49,690. Patented Aug 17, 1920.

4 SHEETS-SHEET I.

P. PARCELLS.

BENDING ROLLS- APPLICATION FILED AUG-30. I915.

Patented Aug. 17, 1920.

4 SHEETS-SHEET 2.

P. PARCELLS.

BENDING ROLLS.

APPLICATION HLED AUG.30, 1915.

Patented Aug. 17, 1920.

4- SHEETS-SHEET 3.

ww a 7/7 P. PARCELLS. BENDING ROLLS.

APPLICATION FILED AUG-30.1915.

1,349,690, Patented Aug. 17,1920.

4 SHEETS-SHEET 4.

whq jas M m 772 L, v i v M J m @M UNITED STATES PATENT OFFICE.

PAUL PARCELLS, onoHIcAGo, aLLmoIs, A ssIeNoRTooEomwHIrme oomrzmmbr CHICAGO, rumors, i A CORPORATION or ILLINOIS.

. BENDINGQROLLS.

To all whom it may concern Be it known that I, PAULPAnoELLs, a citizen of the United States, residing at Ghicago, in the county of Cook andState of Illinois, have invented certainnew and useful Improvements in Bending-Rolls, of which the following is a specification.

My invention relates to that class of machines known as bending rolls used for th'e purpose ofbending or of bending and corrugating metal sheets and the obj ectfthereof is to provide a comparatively simple. efficient and reliable machine of this character possessing advantages both in construction and mode of operation. My machine isparticularly characterized by the employment of an end bearing for the top roll which bearing swings in a plane at right angles to the axis of such roll and whose swinglng movement, moreover, causes, through interbodily of such top roll away from the bottom roll so as to permit the Work to be readily removed from between the rolls.

My machine is'further characterized by the movement of the bottom roll in such manner that it may yield and also by the provision of means for relieving the yield ing pressure which holds such roll in its working position. i

. Mly machine is still further characterized by efficient and reliable mechanism for moving or adjusting the back roll by power toward and away from the top r011.

My inventionembodies other advantages and novel features of construction and mode of operation which will be apparentjfrom the description hereinafter given.

While I have herein shownand will here inafter descrlbemy machlne as constructed for the manufacture of corrugated pipe, yet

it will be understood that my invention is not limited to that particular use, although such use accentuates the value of. the invention. i

In the drawings, Figure 1 is a top plan view of my machine; Fig. 2 a front end elevation thereof; Fig. 3 a cross-section on line 33 of Fig. 1; Figf l-a cross section on the line 4-4 of Fig. 1 Fig. 5 a horizon tal section on the line 55 of Fig. 3; Fig. 6 a vertical section on the line 6-6 of Fig. 3; Fig. 7 a detail horizontal section on i the line 7- 7 of Fig. 6; Fig. 8 a perspective of the spring rod shown in Fig. 6; and Fig.

Specification of Letters Patent. Patented :Aug'; 17,1192), Application filed August 30; 1915. Serial m.4s,1qs.

9 a detailed sectional view taken on the line 9-9 Flg. 1; andFig. 10 a detail of the removable bearing for the outer endbf the top roll.

Referring to the particular embodiment of my invention as herein shown without limitingmyself specifically thereto, the machine is provided with any suitable character and slze of mam frame which is here shown as comprising two parallel I-beams l ings. These frames comprise a front end frame 2, a back end frame 3 and an intermediate or middle frame 4. There arethree rolls, to wit, the top roll 5, bottom roll 6 and back roll '7 whose relative arrangement l is best shown in Fig. 3. The top roll has its main bearing at its intermediateportion mediate operating connections, a movement in aueccentric trunnion 8 forming apart ofa yoke 9 having anothertrunnion 1O hearing agalnstthe end frame3. The toproll has an extended shaft 5 passing through the two trunnions 8 andlO of the yoke and having its end journaledin the end frame 3,

Fig. 1. In sofar'as this particular construction is concerned, it is substantially the same as shown in Patent Number 1,195,714,

granted August 22, 1916, uponmy prior application to my assignee, George Whiting be swung away fromlthe bottom roll whencverithe yoke isoscillated in amaimefhereinafter explained.

The bearingat what may be termed the outer endof the top roll is ofnovel construction and operation inasmuch as it is adapted to swing" ina plane at right angles to the axisof rotation of its roll. As shownmore particularly inFigs. 1, 2, 6 and 10 this outer bearing comprises .anarm 11 which ishookshaped at its upper end by reason of the provision of a beariiig 11 having a latcral openingfor the purpose of receiving andholduig .111 working posit on the outer end of the top roll. This swinging arm is provided at its upper end withan ope 'ating handle 11", and pivoted at its lower end andsecured to a rock shaft 12 suitably. journaled in the frames, 2, 3 and a. This shaft is operatively connected with the yoke 9 with suitable connections with the result that when the swinging arm is rocked or swung to the right in Fig. 2 so as to remove the outer bearing of the top 'roll the yoke and consequently the top roll are automatically swung as an incident to such swinging movement of the arm' the result that the top roll will be swung upwardly and away from the bottom roll.

By preference the arm 11 is locked in' working position in suitable manner as by means of the pivoted latch havmg a hook portion adapted to be engaged over a pin or ro'ection 16 on one side of such arm as working position the bearing 11 will engage I the bushing which will partially turn or cenclearly shownin Fig. 2, where the latch is illustrated in locked position.

Referring to the preferably detailed construction of the outer bearing of the top roll,

as shown in Fig. 6, the same is provided with a bearing bushing 17 held in place on the end extension of the top roll by means of an end plateor disk 18 which is itself secured to the roll by means of the central screw 19. The bushing 17 is made with an angular outer surface being hexagonal in the present in stance as seen in Figs. 2, 6 and 10, and the construction and arrangement of the parts are such that when the arm 11 is swung to ter itself with respect to such bearing if it is not already in such position when the bearing engages the same, see particularly Fig.

"1.0 in which the movements of the parts are indicated by arrows; It will be observed that by reason of the polygonal formation of the bushing 17 and the corresponding shape of the bearing 11, the bushing is prevented from'turning, and the contacting v toward the edge of the opening.

11131381 and lower plane surfaces of the bushing and bearing extend considerably beyond the diametrical center of the bearing A secure and substantial support to the outer end of the top roll is therefore attained by this v construction.

Referring next to the bottom roll 6 the same is mounted in bearing boxes or journals 20, which are movable vertically in the vertical guides 21 provided in the end frames '2 and ll These journals are mounted on the vertical rods 22 having their bearings in said frames 2 and 4 and supported at their lower ends by a pivotal connection with two similar substantially horizontal levers 23.

These levers are pivoted at their outer ends at 24 in brackets 25 secured to the sldes of the end frames 2 and l preferably in an :idjust-able manner. By preference the lower ends of the rods 22 are provided with sockets which receive the rounded bearing projections 26 and thereby form a ball and socket joint or pivotal connection. The inner adjacent ends of the two levers 23 are pivotally connected by means of two parallel links 2'? between which links and between the ends of the levers 23 is arranged a semi-circular block 28 having rounded top edges and having also a rectangular block portion 28 titting crosswise and above the top edges of the two links 27. The block 28 is secured to these links by means of the cross pin 2E). The blocks 28 and 28 are provided with a vertical rod 30 which is held upwardly with a yielding pressure by means of the coiled spring 81. This spring bears at its upper end against a plate 82 which is held in place on the rod bymeans of the nut 33 screwing on the upper end thereof and such spring bears at its lower end against the plate Ill contained within a short spring barrel or cylinder 35 whichis secured to and supported by the cross member 36 of the main frame.

7 The spring 31 and the connections between it and the journal boxes 20 constitute means for yieldingly holding the bottom roll in working position so that this roll may yield for different thicknesses of metal plate and more particularly for the joint or lap such as occurs in corrugated or culvert pipe. Moreover the construction and arrangement is such that the effect of the yielding mechanism may be relieved at the will o l the operator, thereby dropping the bottom roll or at least removing the pressure thereof against the top roll with the result that the swinging arm 11 can be more readily operated. that is with less exertion. The means for relieving this pressure at the will of the operator consists of a lever or treadle i)? ar ranged at the front end of the machine in position to'be operated by the foot of ti operator and just at or prior to the time 1 grasps the handle 11. of the arm 1 l. for tl purpose of swinging the same. This tread is secured at one end to a rock shaft l which has its bearings in one of the I-beanis 1. This shaft is provided at its inner end with a crank arm 35) to which is pivotally connected a link 420 whose upper end is itsel l' pivotally connected to one end of a horizontal. link 11, the other end of such latter link being pivotally supported or fulcrumed at 1-2 on the lower side of the cross member 31o. This link 11 is enlarged at its intermediate portion and provided with a slot 1-1 to accommodate the block 28*. This link therefore is adapted to bear against the transversely rounded top surfaces at the ends of the semicircular portion of the lllut'K 28. on opposite sides of the block 28, but is held to turn meshes with a spur gear 52*. The drive shaithfl 1S provided with 'lrui-tmn normal horizontal position as shown in Fig. 3 by means of a vertical rod secured to one end of the link and spring-pressed upwardly by means of a spring .l. hen the treadle depressed thefyieliding supporting means for the journal bearings will be distabled inasmuch as the outer end'ot the link 4:1 is thereby moved down ardly through the operating? connections andconsequently the links 27 and thelerers 23 are likewise depressed with the result that the upward tension of the vertical rodsQQ will be overcome, and the upward pressure on the journal boxes will consequently be relieved.

Referring next to the back roll 7 the same is mounted in bearing boxes or journals 4:?) movable longitudinally of bearing"guides 46 formed in the vertical frames 2 anddwhereby the boxes maybe moved or adjus iated to ward and away from the top roll. These boxes are adapted to be moved by hand by operating the power mechanisni; Asrherein shownthe boxes are secured at the upper ends ot screw shafts 4-7 having suitable boa rinns in said frames 2 and 4t and each being provided with beveledgear 4L8 threaded on its screw shaft. For the purpose oiioperating' these beveled gears in unison a common horizontal shaft 49 1S employed at the ends of which similar bevcled pinions 50 are secured adapted to mesh with i the beveled gears 48. The shaft49'1spror1ded with two similar spur gears 01 andhl one of which meshes with the spur gear 52 and the other 7 withanidleror reverse gear-52"which in Fig. 5))

clutches 5d and 54 which being of ciun'entional constructionneed not he described in detail except to say that the gears 52* are "boxes in oppositedirections and yielding particularly when the back roll" is forced ayainstthe top: roll with apredetcrminml pressure the clutches will yicld yorl slip.

These clutches are controlled in a suitable manner as by meansot the lever arranged at thegoperatofs side of the machine and having operating connections which here st of a horizontal rod 56 extending ac )SS the machine and pivotallyconnected to a bell. erankflh? which in turnis piyotally connected to the operating rod hSand yoke htl which operates the clutches. In the position shown in Fig. liyhlltillQQVi) 548 which $4 is operated and the gears 5l, 52 and52 are driven to move the back roll away from the top roll. By nreterencethe shaft 53 is e tended beyond the end of the end frame :2 so" that it may be operated by hand. (Fig. 1.

'lliedriving connectioi'ls for the rolls and the drive shaft 53 comprise in the first ill-- stance a pulley 59 having a main drive shaft 60 journaled in the frames 3 and d-and having at its outer end a pinion 61 which meshes with the large gear secured to the countershatt 63, hai'ingits hearings in the frames Z; and The shaitGS carries a pinion 64 which meshes with the pinion 65 secured to the extendedcnd oi": the bottom roll for the purpose of driving; the latter. Thcpinion 65 meshes with anotlier pinion (36 which is secured to the extended end of the top roll. In addition the pinion 65 meshes with a pinion 67 which in turn meshes with a pinion 68 secured to the extended end of the back roll. itcr the purpose of rotating the latter.

Referring to the conliections between the main drive shaft 60 and the driveshatt 53 the same comprise the gear 69 secured to the shaft 60 and the intermeshing gear 70 secured to the shafthS.

It willbe understood that the construction and arrangement of the ylelding sup-' is desirable in certain classes of work inasmuch-as the product going through the maehine may be thicker at the end,

I claim: i

'1. In a machine of the classdescribed, the cmnhination of bending rolls, and a removabie bearing ioronocnd of one of said rolls and arranged to swing in a plane at right angles to the axis of rotation of said roll,

said latter roll having a tree polygonal bearing lmslnng and said removable bearing having a corresponding polygonal seat adapted to engage said bushing adapted to be engaged by said rennrmble hearingi 2. ln machine of theclass described, the coml'iinatioiroif bending rolls and an arm lccatecadjaceutone end of one oi said rolls ainlarranged to swing: in a plane at right angles to the axis of rotation otsaid roll, said end of the roll havi mg a :lree polygonal bearing: bushing and said arnihatdngr a cor- IDSPQlNlH) prflygonal bearing portionadapted toeng'age said lnishingr. i y

y In a machine oithc class described, the combination of bending rolls, and an arm located adjacent one end oi? one of "said rolls and arrainred to swing: in a plane right anglesitothe axis ct rotation at saidroll;

said end of the roll havinga freely rotatablebearing bushing externally angular, and said arm having ,a bearing portion adapted tocnn age saidangular portion of the bushing. i

4. In a machine of the class described, the combination of bending rolls, and an arm located adjacent one end of one of said rolls and arranged to swing in a plane at right angles to the axis of rotation of said roll, said arm having a side opening forming a .bearing and said end of the roll having a tion thereto, a removable bearing for one end of said roll arranged to be shifted into and out of bear1ng,and operat1ng.connect1ons between said removable bearing and said means.

6. In a machine of the class described, the combination of bending rolls, means for swinging one of them bodily toward and away from its adjacent roll in a curved path and in parallel relation to said adjacent roll, an arm located adjacent one end of said swinging roll and pivoted to swing, said arm having a bearing to engage said end of the roll, andoperating connections between said arm and said means.

5 7. In a machine of the class described, the combination of top, bottom and back rolls,

7 a bearingfor the top roll adapted to rock in a plane at right angles to the axis of rotation of each roll, means for swinging the roll away from the other rolls in a curved path and in parallel relation to such other rolls, and means for substantiallysimultaneously operating said bearing and said means. 8. In a machine of the class described, the combination of top, bottom and back rolls, a bearing for the top roll adapted to rock in a plane at right angles to the axis of rotation of each roll, said bearing comprising a rock arm having a side opening forming a bearing proper, means for swinging the roll away from the other rolls in a curved path andin parallel relation to such other rolls, and means for substantially simultaneously rocking said arm and operating said means. 9. In a machine of the class described, the combination of bending rolls, movable journal bearings for the bottom roll, and yielding supporting means for said bearings comprising a pair of levers operatively connected therewith and a spring cooperating with both "of the levers to hold the bearings in working position with a yielding pressure.

, 10. In a machine of the class described, the combination of bending rolls, movable journal bearings for the bottom roll, and yleldlng supporting means for said bearings comprising a pair of levers operatively connected therewith, a link connecting the inner adjacent ends of the levers, and a spring operatively connected with the link.

11. In a machine of the class described, the combination of bending rolls, movable journal bearings for the bottom roll, and yielding supporting means for said bearings comprising a pair of levers operatively connected therewith, a link connecting the inner adjacent ends of the levers, a rod hearing against the link, and a spring connected with the rod.

12. In a machine of the class described, the combination of bending rolls, movable journal bearings for the bottom roll, a spring bearing against a fixed abutment and arranged to yieldingly support said bearings, and independent mechanism for further compressing said spring against said abutment and thereby relieving the bearings of the eflect thereof.

'13. In a machine of the class described, the combination of bending rolls, movable journal bearings for the bottom roll, and yielding supporting means for said bearings comprising a pair of levers operatively connected therewith, a spring cooperating with both of the levers to hold the hearings in working position with a yielding pressure, and mechanism cooperating with the levers for disabling the spring with respect to its effect upon the levers.

14. In a machine of the class described, the combination of bending rolls, movable journal bearings for the bottom roll, and yielding supporting means for said bearings comprising a pair of levers operatively connected therewith, a spring cooperating with both of the levers to hold the bearings in working position with a yielding pressure and tending to move them in one direction, a link connecting the adjacent ends of the le vers, and manually operative mechanism for moving such levers in the opposite direction to relieve the bearings of the spring pressure.

15. In a machine of the class described. the combination of bending rolls, movable journal bearings for the bottom roll, and

yielding supporting means for said bearings comprising a pair of levers operatively connected therewith, a spring cooperating with both of the levers to hold the bearings in working position with a yielding pressure and tending to move them in one direction, a link connecting the adjacent ends of the levers, a member adapted to bear against the link to move the levers in the opposite direction, and manually operative means for actuating said member.

16. In a machine of the class described, the combination of bending rolls, movable journal bearings for the bottom roll, and yielding supporting means for said bearings comprising a pair of levers operatively connected therewith, a spring cooperating with both of the levers to hold the hearings in working position with a yielding pressure and tending to move them in one direction, a link connecting the adjacent ends of the levers, a pivoted link bearing downwardly upon the link to move the levers in the opposite directions, a treadle and operating connections between it and the link.

17.111 a machine of the class described, the combination of bending rolls, movable journal bearings for the bottom roll, yielding supporting means for said hearings, including a pair of levers, rods between the levers and bearings, and a spring cooperating with-the levers to hold the bearings in working position witha yielding pressure.

18. In a machine of the class described, the combination of bending rolls, movable journal bearings for the bottom roll, yielding supporting means for said hearings, including a pair of levers having an adjustable fulcrum and operatively connected with the bearings, and aspring cooperating with the levels to hold the bearings in working position with a yielding pressure.

PAUL PAROELLS.

Vitnesses:

'FIDELIS MAIGHEN, LoUIs B. ERWIN. 

